No I don't think its big enough for deer just like I don't think the 22 calibers are suited to deer either. Why do some people insist on pushing the envelope at the expense of inhumane kills and wasted animals?

NO !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
You need to take a ethices class.
I agree it's a varmit round.
It may kill but not humainly .
Penatration will be next to nothing because the bullet is designed to fragment.

I won't say it won't kill a deer. And I do belive that the .22 centerfires will do the job, but please let that one lay buried. But it will NOT work for a shoulder shot. I also don't think it would work for a head or neck shot, unless you hit the spine. As loaded factory, I belive it is only available in a V-Max bullet. It would never make it through the bone, and would certainly wound the animal. Just play it safe and not try it.

As Pharoah2 mentioned, the 204 only comes from the factory in Rem and Hornady loads with the v-max or accu-tip, which is not appropriate for any non-varmint. Even reloaded with the heaviest Berger bullet, it would not be appropriate for deer.

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"A hunter should not select a caliber and bullet that will kill when everything goes right, rather,
should choose ones that will kill when everything goes wrong."

No, I don't think it would take down a deer with shoulder shot. Ammo just isn't available that can penetrate to get thru the shoulder.

Dad gone, you guys are extremely jumpy today. Guy just asks would it take a deer down. Not ethical, not quickly. READ THE FREAKING QUESTION PEOPLE!!!! And all the sudden, everybody wants to be experts on something telling people what they should or shouldn't do.